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 成人高等教育 / 工程制图基础
正确率:100%

直线AB的侧面投影具有积聚性,因此称之为(   )。

图片3.png

  • A、

    一般位置直线或倾斜线

  • B、

    侧垂线

  • C、

    正平线

  • D、

    水平线

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